Problem 5.5-16 (20 points). The beam shown in the figure below (P5.5-16) is laterally supported (braced) at A, B, C, and D. The loads (D: dead, L: live) are nominal (service) loads. Is a W18 x 119 with F-50 ksi adequate? Notes for solution: use LRFD. The self-weight of the beam (not shown in the figure) must be included in calculations. Check segments BC and CD since they are most critical for the loading. A WD = 3.5k/ft WL = 1.0k/ft 9' B P₁ = = 30k 9' 18' 36' FIGURE P5.5-16